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Introduction

We know you don’t like reading owners manuals, but you’ve just purchased one of the
finest bass amplifiers around, and we want to tell you about it!  So, before you plug in and
start popping and slapping, we’d like to suggest you take just a few moments out to scan
these pages.  We’ll make it as painless as possible, we promise—and, who knows, you
might just pick up a tip or two.

The A70 and A100 are powerful combo amplifiers, which include a matched 8 ohm alu-
minum bass speaker in a specially designed cabinet which can be used either flat on the
floor or on its “kickback” position for increased high end clarity on directionality.  They’re
the perfect system for use in small venues such as club dates and for home recording stu-
dios.  Plus, the CD input and dedicated headphone output makes them awesome practice
amps!

There are four different models in the A Series, and this manual covers the A70 and A100.
The A70 is a compact combo with a 70 watt amp and an 12 inch custom designed Hartke
Aluminum Series speaker. The A100 has a 100 watt amp and a 15 inch custom designed
Hartke Aluminum Series speaker. Whichever of these models you’ve purchased, you’re
assured of that great Hartke sound and robust construction.

In these pages, you’ll find a detailed description of the many features of your A Series
Combo Bass Amplifier, as well as a guided tour through its front and rear panels, step-by-
step instructions for setting up and using the amp, additional information about  equaliza-
tion, plus full specifications.  You’ll also find a warranty card enclosed—please don’t forget
to fill it out and mail it so that you can receive online technical support and so we can send
you updated information about this and other Hartke and Samson products in the future.
Also, be sure to check out our website (http://www.samsontech.com) for complete  infor-
mation about our full product line.

SPECIAL NOTE: Should your Hartke A Series Combo Bass Amplifier ever require servic-
ing, a 

Return Authorization

(RA) number is necessary.  Without this number, the unit will

not be accepted.  If purchased in the United States, please call Samson at 1-800-372-6766
for a Return Authorization number prior to shipping.  Please retain the original packing
materials and, if possible, return the unit in its original carton and packing materials.  If pur-
chased outside the United States, please contact your local distributor for warranty infor-
mation.

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Summary of Contents for A100

Page 1: ...Hartke Hartke Hartke A SERIES COMBO COMBO S A S B A100 A70 ...

Page 2: ...receptacles and at the point at which they exit from the unit 11 Unplug this unit during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified personnel Servicing is required when the unit has been damaged in any way such as power supply cord or plug damage or if liquid has been spilled or objects have fallen into the unit the unit has been exposed to rain or...

Page 3: ...ing Up and Using Your Hartke A Series Combo Bass Amplifier 7 8 Using the CD Input 9 Using Equalization 10 11 Specifications 12 Copyright 2003 Samson Technologies Corp Printed November 2003 Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 ...

Page 4: ...eaker Whichever of these models you ve purchased you re assured of that great Hartke sound and robust construction In these pages you ll find a detailed description of the many features of your A Series Combo Bass Amplifier as well as a guided tour through its front and rear panels step by step instructions for setting up and using the amp additional information about equaliza tion plus full speci...

Page 5: ...ries bass amplifier Bass and Treble plus a high quality seven band Graphic Equalizer allow you to create a broad range of tonal colors for your bass instrument Line level effects loop send Preamp Out and return Amp In jacks that allow you to connect to professional outboard effects processors A dedicated CD input is included allowing you to hook up a portable CD or MP3 player to practice along wit...

Page 6: ...is at the 12 o clock 0 position there is no boost or attenuation that is flat response As it is turned clockwise from the 0 position the frequency area is boosted as it is turned counterclockwise from the 0 position the frequency area is attenuated For more information see the Using Equalization section on page10 in this manual 6 Treble EQ control This peaking control provides approximately 15 db ...

Page 7: ...teadily red the entire signal is being limited This LED follows the incoming signal changing continuous ly as different amounts of compression and or limiting are being applied 10 Phone jack Connect any stereo headphone 600 ohms or less to this standard 1 4 stereo jack When a plug is inserted into the headphone jack the speaker output is dis connected allowing you to use your A Series as a practic...

Page 8: ...con nect the A Series signal to a Line level input when interfacing with PA systems or recording mixing consoles D Preamp Out Effects Loop Send Use this 1 4 unbalanced jack to send signal to a pro fessional outboard effects processor Output level is approximately 0 dB to 4 dB and is post EQ and post Shape but unaffected by the setting of the Volume control The signal from this output is the same a...

Page 9: ...ll seven graphic EQ sliders to their 0 position 5 Press the front panel Power switch in order to turn on your A Series amp the LED in the switch will light up 6 Set the output of your bass to maximum and then while playing slowly turn the A Series Volume control up until the desired level is achieved It s nearly impossible to overload the A Series amplifier so if you hear distortion even at low Vo...

Page 10: ...If you re using a professional external signal processor that has Line level inputs and outputs turn your A Series amp off momentarily and then connect a standard audio cable between the rear panel Preamp Out jack and your effects processor input and another standard audio cable between the Amp In jack and your effects processor out put If required multiple effects processors can be daisy chained ...

Page 11: ...al into the CD input including the signal from a keyboard or drum machine Connect the CD player or other Line level device to the CD Input using standard RCA cable You will want to use the volume control on the CD player or other Line level device to set the balance between the track and your bass So start with the volume con trol all the way down and slowly raise it until you reach a good balance...

Page 12: ...refully selected these frequency areas because they have maximum impact on bass signals For example the Bass 100 Hz control affects the very lowest audible frequencies in fact most humans cannot hear below 20 Hz while the High 5 kHz control affects the twang of a bass string When a Bass or Treble knob is in its center detented position 0 it is having no effect When it is moved right of center the ...

Page 13: ... attenuating the Mid EQ control For a twangy cutting sound try boosting the Treble EQ Putting new roundwound strings on your bass will help a lot also Whenever you get a really good EQ setting for a particular instrument or song write it down you d be amazed how easy it is to forget these things As you experiment with the EQ controls of the A Series don t forget that your bass also provides signif...

Page 14: ...peaker Out 48 dB A70 55 dB A100 Active In to Direct Out Preamp Out 14 dB A70 14 dB A100 Active In to Speaker Out 38 dB A70 45 dB A100 Equalizer Bass 100 Hz 15 dB Treble 5 kHz 15 dB Graphic 80 Hz 160 Hz 315 Hz 630 Hz 1 25kHz 2 5kHz and 6 3kHz 12 dB Headphone Output 200 mW typical 600 ohms Fuse Type 3AG slo blo US Japan 50T time delay UK European Fuse Rating US Japan 1 0A A70 1 6A A100 UK European T...

Page 15: ......

Page 16: ...distributed world wide by Samson Technologies Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www hartke com www samsontech com ...

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